package com.example.childpositionapp.util;

import java.security.MessageDigest;

public class UtilMd5 {
    /**
     * md5加密 生成32位md5码
     *
     * @param inputString 输入的密码
     * @return
     */
    public static String stringMD5(String inputString) {
        MessageDigest md5 = null;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            System.out.println(e);
            e.printStackTrace();
            return "";
        }
        char[] charArray = inputString.toCharArray();
        byte[] byteArray = new byte[charArray.length];

        for (int i = 0; i < charArray.length; i++) {
            byteArray[i] = (byte) charArray[i];
        }

        byte[] md5Bytes = md5.digest(byteArray);

        StringBuilder hexValue = new StringBuilder();
        for (int i = 0; i < md5Bytes.length; i++) {
            int val = ((int) md5Bytes[i]) & 0xff;
            if (val < 16) {
                hexValue.append("0");
            }
            hexValue.append(Integer.toHexString(val));
        }
        return hexValue.toString();

    }
}
